Respondus 4.0 is compatible exclusively with Windows computers. Institution, support, and password information is included within the ZIP file on AU INSTALL. Each year on July 31, the password is updated and must be replaced to retain access. You will find the updated password in the latest ZIP file, though reinstalling Respondus 4.0 is not necessary. For seamless functionality, always refer to the most recent ZIP file on AU INSTALL for up-to-date license information.